Information Systems Security Officer (ISSO)- Senior

Modern Technology Solutions Inc•Huntsville, AL

About The Position

As the ISSO, your responsibilities will include: Cybersecurity Support: Implement and maintain cybersecurity controls for mission systems to protect sensitive data and assets. Assist in the development and maintenance of System Security Plans (SSPs), Risk Assessment Reports (RARs), and other RMF documentation. Ensure compliance with DoD regulations, policies, and guidance, such as STIGs, FISMA, and NIST SP 800-53. Support the RMF process, including categorization, control selection, assessment, and continuous monitoring of system security posture. Assist in the preparation and submission of Authorization to Operate (ATO) packages and ensure systems maintain their authorized status. Collaborate with engineering and operational teams to implement required security controls and resolve deficiencies. Prepare briefings and reports for program managers and stakeholders regarding cybersecurity performance and risks. Develop and implement plans to mitigate identified vulnerabilities and reduce risks to the systems. Support cross-functional teams to align cybersecurity efforts with mission requirements. Ensure personnel are trained and aware of cybersecurity responsibilities, policies, and best practices relevant to the systems.

Requirements

Bachelor's degree in Cybersecurity, Information Assurance, Computer Science, or related technical field.
10+ years experience in information systems security or related roles within DoD environments.
Knowledge of RMF processes, DoD cybersecurity standards, and NIST 800-53 control frameworks.
Familiarity with security tools such as ACAS, Nessus, Splunk, or SIEM platforms.
Strong problem-solving and analytical skills with attention to detail in a compliance-driven environment.
Excellent communication skills for collaboration with technical teams and program managers.
Certifications such as Security+, CEH, CISSP, or other DoD-approved cybersecurity certifications.
Active TOP SECRET (TS) clearance with eligibility for Sensitive Compartmentalized Information (SCI).
U.S. Citizenship is required for this position.

Nice To Haves

Experience with space-based systems or satellite communications cybersecurity.
Familiarity with implementing and maintaining security controls for classified and unclassified systems.

Responsibilities

Implement and maintain cybersecurity controls for mission systems to protect sensitive data and assets.
Assist in the development and maintenance of System Security Plans (SSPs), Risk Assessment Reports (RARs), and other RMF documentation.
Ensure compliance with DoD regulations, policies, and guidance, such as STIGs, FISMA, and NIST SP 800-53.
Support the RMF process, including categorization, control selection, assessment, and continuous monitoring of system security posture.
Assist in the preparation and submission of Authorization to Operate (ATO) packages and ensure systems maintain their authorized status.
Collaborate with engineering and operational teams to implement required security controls and resolve deficiencies.
Prepare briefings and reports for program managers and stakeholders regarding cybersecurity performance and risks.
Develop and implement plans to mitigate identified vulnerabilities and reduce risks to the systems.
Support cross-functional teams to align cybersecurity efforts with mission requirements.
Ensure personnel are trained and aware of cybersecurity responsibilities, policies, and best practices relevant to the systems.